Plus, bike tires are prone for flats. We'd need to make larger wheels and/or thicker inner tubes. But then, we should also create a mandatory airbag system. This Automatic Bubble Protection System (ABPS) would save countless lives. Until that is, someone sees you in one, gets distracted laughing at you and veers off the road crashing. Then the manufactures of the ABPS would get sued because their product causes distracted drivers.
When does the insanity stop???